Can I create a "chat" app between two Bangle.js 2 watches? Can I use Bangle.js 2 with Puck.js ?

Ah, sorry. From "I have two apps ..." I got the impression you wrote them, but see now that Gordon did.
Anyway, I do have two bangles here so will give it a try this evening.
Since this test app uses GPS it`ll only work outside. Would also be interesting how well it does between adjacent rooms.